/*
 * 版权所有 (C) 2015 知启蒙(ZHIQIM) 保留所有权利。[遇见知启蒙，邂逅框架梦]
 * 
 * https://zhiqim.org/project/zhiqim_framework/zhiqim_httpd.htm
 *
 * Zhiqim Httpd is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
package org.zhiqim.httpd.entities;

import java.io.IOException;

import org.zhiqim.httpd.HttpContext;
import org.zhiqim.httpd.HttpEntity;
import org.zhiqim.httpd.HttpException;
import org.zhiqim.httpd.HttpHeader;
import org.zhiqim.httpd.HttpSender;

import org.zhiqim.kernel.util.Strings;

/**
 * 未找到路径处理器
 *
 * @version v1.0.0 @author zouzhigang 2014-3-21 新建与整理
 */
public class NotFoundEntity  implements HttpEntity
{
    @Override
    public boolean isMatch(String pathInContext)
    {//全匹配，在handle中处理
        return true;
    }
    
    @Override
    public void handle(HttpHeader header, HttpSender sender) throws HttpException, IOException
    {
        String pathInContext = header.getPathInContext();
        
        HttpContext context = header.getContext();
        String notFoundUrl  = context.getNotFoundUrl();
        if (notFoundUrl == null || notFoundUrl.equals(pathInContext))
        {
            sender.sendErrorHTML(_404_NOT_FOUND_);
            return;
        }
        
        //有配置未找到页面，contextPath有可能是"/"格式，要清除最后一个"/"
        String contextPath = context.getContextPath();
        contextPath = Strings.trimRight(contextPath, "/");
        
        sender.sendRedirect(contextPath + notFoundUrl);
    }
}
